regeneration
It is called a Ray.
As interstellar clouds approach the spiral arm region it helps them to begin the collapsing process and eventually form a star.
the so called funny bone
The long bone in the upper arm is called the humerus.
yes but it willl eventually grow back in a process called regeneration
open ambulacral grooves
the attacker goes after the arm leaving the rest of the body unharmed. After the brittle star can always just regrow the arm.
It would, but you would break your arm in the process.
arm
The females lay eggs in the water and let them float there, then males can come along and let sperms into the water and let them float there. Then they can mix and the egg becomes fertilized and a baby starfish is made. OR a female will lay her eggs and let them float and then another female can come and lay her eggs and they can fertilze each other making a baby starfish. That is not correct... Sea stars reproduce asexually using the method of fragmentation, when the sea stars arm falls off and makes a new individual sea star that is genetically identical to the parrent.. xAdubz
It is called the q arm.
The arm makes carrying around a microscope easier.